Machine for inking edges of shoe parts



May 23 1944- R. R. CAMPBELL 2,349,245

MACHINE FOR INKING EDGES` OF SHOE PARTS Filed June 19, 1941 j 3Sheets-Sheet 3 ,May 23 1944 y Rl R. CAMPBELL 2,349,245

MACHINE FOR INKING EDGES OF SHOE PARTS Filed June 19, 1941 5Sheets-Shee'cl 2 May 23, 1944. "R. R, CAMPBELL 2,349,245

MACHINE FOR INKING EDGES OF SHOE PARTS u Filed June 19, 1941 3Sheets-Sheet l' Flgl. E

Patented May 23, 1944 MACHINE FoaTNmNG EDGES oF snoE PART Rouel R.Campbell, Lynn, Mass., assignor to United Shoe Machinery Corporation,Flemington, N. J., a corporation of New Jersey Application June 19,1941, Serial No. 398,857

(c1. en 54) 30 Claims.

The present invention pertains to a machine for applying a coating tothe edges of sheet material and is more particularly directed toapplying stain to the raw edges of shoe parts.

In many styles of shoes, parts thereof are decorated by perforations,cut-outs and serrated edges. Sometimes it is desirable to stain theseraw edges with a color similar to that of the shoe to impart a nishedappearance thereto. In novelty shoes, it may be desirable to stain theedges to secure a contrasting color for decorative purposes. Heretofore,this has been done largely by hand, small brushes or pipe cleaners beingemployed for getting into the perforations, cut-outs and serrations.Because of the expensiveness of hand methods, machines have beendeveloped for mechanically applying the stain. In such machines, theedges of the shoe part `are coated by supplying a quantity of stain tothe whole of the iiesh or Wrong side of the shoe part and allowing thestain to ow about the edges while protecting the opposite, display orgrain side by holding it against a clean shielding device. While coatingthe entire flesh or wrong side of the shoe part does not spoil theappearance of the Work, because it is hidden from view, a considerablequantity of stain is absorbed by the fibrous texture of the flesh sideof the work and is wasted. Moreover, according to some, the stainadversely affects the leather, causing it to feel tinny.

It is an object of the present invention to provide an improved machineof the type heretofore employed which will rapidly and effectively coatthe edges and cut-outs of parts of shoes, which will maintain thedisplay side clean andyunblemished, and in which substantially no stainwill be deposited on the flesh or wrong side of the shoe parts. Y

In the prior machines, the work was held with its grain or display sideagainst a shielding mem.- ber, having a surface designed to protect thedisplay side of the work fromthe ink, by a perforate member such asfelt, cheesecloth, or a wire cloth of fine mesh which engaged theopposite side of the work and was interposed between the work and an inkcarrier. Means was provided for pressing the members together to expressthe ink from the ink carrier through the perforate member over theentire opposite side of and about the edges of the work. In the presentmachine, a feature of the invention residesin a perforated member otherthan fibrous ory metallic in character for controlling the ow of inkwhich, Iaus illustrated, is interposed between the inkcarrer and theshielding member, means to bring the members together to enclose thework, and means thereafter to press the perforated member, while inengagement with the shielding member around the edges ofthe work,against the ink carrier.

As shown herein, and in accordance with other features of the invention,the shielding member and perforate member take the form of endlessrubber or `synthetic rubber-like belts portions of which Yare arrangedto engage the opposite sides of the Work, means being provided formoving the belts past an ink applying roll and pressing the perforatebeltinto contact therewith. Also, as illustrated, invention resides inthe employment of means for varying thevpressure between the perforatebelt and the ink applying roll.

Still other features of the invention reside in the provision ofcleaning devices for the surface ofthe shielding belt, which has ahighly polished surface so-that ink will not adhere readily to it, or ismade of an ink-repellent substance. These cleaning devices are a waterbath for washing the ink from the surface of the belt and a rotatingbrush for drying the surface of the belt.

The machine vwill now be described in detail 4with reference to theaccompanying drawings, in which Fig. 1 is a rear elevation of the entiremachine;

Fig. 2 is a side elevation of the machine as seen ,from` the right endof Fig. 1;

v. Fig. 3 is a side elevation of the machine as seen from the left endof Fig. 1 Fig. `4 shows a piece of work of the type to which the stainas it be applied; Fig. 5 is a section on the line V--V of Fig. 1;

Fig. 6 is a section on the line VI-VI of Fig. 5;

Fig. '7y is an enlarged fragmentary plan View of `the multipore belt;Fig. 8 is an enlarged fragmentary section of vthe multipore belt;

Fig. 9 is an enlarged fragmentary section, showinglthe work disposedbetween -the multipore belt and the pressure applying` belt, movingtoward the ink-carrying roll; l i Fig. 10A is an enlarged fragmentary4section, showing the work between the multipore belt and the pressureapplying belt in engagement with the ink-.carrying roll; Fig. v 1l is anenlarged section on the line Fig. 12 is an enlarged section, showing theleading edge of thework as it passes over the ink roll; and v Fig. 13 isan enlarged section, showing the trailing edge of the `work as it leavesthe ink roll.

' A shoe part of the kind to which stain is to be applied is shown byway of illustration in Fig. 4 as a shoe tip W having perforations d anda serrated. edge s at the rear portion thereof, as is customary. It isdesirable to treat these raw edges with a stain, hereinafter called ink,which corresponds to the color of the display side of the shoe, or is incontrast thereto in the case of novelty shoes, without getting any of.'`this ink on the display side and substantially none on the flesh orwrong side. In order to do this, it is necessary to shield the displayside of the shoe part and to supply a quantity of ink to the.' wrong:side of the shoe part in such a manner that only the raw edges areexposed to the ink. This is accomplished by placing the shoe. part.`betweerrapair of members I and I2 having faces. III-.andy I6 which maybe brought together about the shoe part to enclose the same (Figs- 91 to113'). The member I2 is a shield designed to protectv the display sideof the work, and the member I0 is a perforate, non-absorbent bodyofrubber'l orf rubbersubst'it'ute, through the perforati'onsvv p11 offWhich ink may beI passedto the edges-of` the' Work; The member Il);whilerinengagement with the member IZf and enclosing the work, ispressed'fagainst an absorbent or'bibulous-member l'whi'chis suppliedwithink' from a receptacle 20 (Fig: .5-)*.

The perforate member IIJ femployedhereinis manufactured in sheetf'ormbythe`Uhi-ted States Rubber Company and is disclosed in theform employedhereinA by Patent No'. I 2,032,941, granted March 3, 1936, to CLE.Linscott etal., assignors to the UnitedStates-Rubber' Company. The poresin this multiporesheet range from" .OIlUllf-to .0008 of an inch orlarger@ in diameter and vfrom 000' to 10,000 or more perforationsl/persquareinch in number. Unstretched", the material appears to beimperibrate, the perforations not beingreadily visible to the naked eyeand under-high magniiication would appear as-'shown in Figs. 7 and8'.Atfthe ypresenttime a multipore sheet containing about3,400'perforatiensper square inchV seems to give the best results, butit isto' be 'understood that itis entirelyl within thevscope oftheinvention to use a multipore-sheet With` a greater or smaller number ofperforations as the particular conditions-change; Y

Since the surface I6" ofthe mer'nberIZl` conta-cts the display side ofthe work;` itis-necessary to keep it absolutely free of ink. For'thisreason, the member I2, which is rubberfis providedwith a very smooth,polished surface which tendsA to shed any ink coming incontacttherewith. The same result 'may also be had rby jusing asynthetic rubber which isresistant to ink; thatis, it has no aiiinityfor the ink and consequently, if any ink does come in Contact with thesurface, itiwill not cling to it. i

It is to be observed that the 'perforationslp in the perforate memberII'J are separate'dironjiv one another by impervious portions and. areVnoncommunicating; that is,` the' material between the perforations isnot permeable and there. is therefore no vopportunity for the ink topassfrom one pore4 to another a'sthere would'be'a ow of ink from oneopening to another in. a permeable member such as cheesecloth, felt, ora Wire. cloth of fine mesh. Therefore, the perforatev member ID affordsa means for controlling the passage ofinkto the workbecause, unlikeabibu-lous member such as felt, cheesecloth, or a wire cloth of nemeshthroughevery portion of which the ink' Willpas's with the maximumvfreedom of movement fromonepore to another v'without re- '[5 straint,the passage of ink through certain portions or areas of the perforatemember may be stopped by blocking or sealing the upper ends of theperforations in these portions or areas. The pores are capillary in sizeand, because of the fact that the material between the pores isimpervious, that is, does not allow the ow of ink from one pore to thenext; are referred: to in the appended claims as being discretecapillary pores, or as pores separated or isolated from each other. Asillustrated, the Work W lies on the surface I4 of the perforate memberI0, thereby covering the upper ends of the perforations p, and when themember I2 is moved into contact with the Work and with the member IIl(Fig. 9), the Work is pressed so irmly against the perforate member thatthe upper ends of the perforations p are sealed by contact of the workwith their upper ends. The sealed upper ends of the perforations trap aquantity of air when the member I@ is movedinto engagement with and ispressed against the ink-carrying member I8 (Figs. 10 and 12)Consequently, the ink expressed-by reason of the pressure exertedagainst the ink-carrying member rises only part way through theperforations. Some leathers are not as. dense vas others' and in someinstances there may bea slight leakage of air through the leather.Consequently, a little ink may reach the top' of the perforations andcome in contact with the Wrong side'of the work, but the amount of suchleakage is minimized because of the short space of' time thework isunder pressure and because of the seal formed between the surfaces` I (Iand i551 of the members It! and I2' when they are broughttcgether toenclose the work. Other factors may cause or contribute to this sealingof the perforations; but the important thing is that no ink passesthrough the pores when they are covered by av layer' of material such asa piece of work. The member I2 does not seal all of the perforationsinthe member It? dueto the fact that the surfaces of the members I0 and I2do not conform perfectly to the edge of the work, as seen in-,Figs. '12and 13. Because of this, a closed passage-P is formed entirely aroundthe work (Fig. 9'), the' walls of the passage being formed by the edgeof the Work and a portion of the surfaces of lthe members Il) and I2adjacent to the edge of the work (Figs. l2 and 13). Since the upper endsoflthe perforations p which open into the passage P are not confined orobstructed, the ink expelled from the ink-carrying member vpasses freelythrough them and lls the passage P (Fig. 1,2), thereby coming intocontact with the edge ofthe Work. It is to be observed that, when themembers Ill and I2 are brought together, the Work W is forced into thesurface I4 of the perforate member II) and, as a result, that portion ofthe member I!! adjacent to the edges of the Work slopes sharply upwardtoward the member I2. The deformation takes place almost wholly in themember I D because it'is so full of perforations that when pressure isapplied it will yield Whereas the solid imperforate rubber member I2Willnot yield appreciably because it is made of a firmer and. lessreadily deformable material than. that used for the member I. 'I'histendency for the member II) to wrapv itself about the edges of the workbends the perforations p in the direction of the edges of the work (Fig.12). When, therefore, the ink is forced through these perforations, itissquirted against the edges ofthe work with some force. When the membersvI0 and I2 are moved out of engagement with the ink-carrying member I8,the ink-carrying member, which is very absorptive and is of a resilientnature, is allowed to expand and, in doing so, it sucks back the ink inthe perforations of the perforate member, thereby withdrawing the inkfrom the passage P and the perforations p so that no ink stands in theseperforations (Fig. 13). This prevents the capillary action of theperforations from holding ink during the time when the perforate memberis not in Contact with the ink-carrying member. It is important thatthere should be no ink in the perforations prior to pressing the memberII) against the ink-carrying member because, if ink lled theseperforations, there would be no opportunity for air to get into theupper ends of the perforations and thus the function of the perforatemember would be partly impaired.

As illustrated in Fig. 5, the members Ill and I2 are preferably endlessbelts 22 and 24 so arranged that the portions I and lI2 thereof areparallel. These belts are supported for co-operation on a frameconsisting of a base 26 and upright walls 28. The belt 22 is composed ofthe material disclosed in the above-mentioned Patent No. 2,032,941 andhas a multitude of fine perforations p therein (Fig. 8). The belt isnonabsorbent and forms a support for the work. Through long usage, theperforations of the belt 22 may become clogged by small particles ofsolid matter in the ink and, consequently, the belt is mounted on anindependent subframe 30 which rests on the base 26 of the frame topermit the belt 22 to be moved bodily from its position beneath thebacking belt 24 without disassembling any of the parts of the machine.As illustrated, the belt 22 is mounted on guide rolls 32 journaled inthe walls of the subframe, the latter having wheels 34 adapted tosupport the subframe on the base and to facilitate rolling the subframeinto and out of position.

The ink-carrying member I8 and the ink receptacle 20 are also supportedby the subframe 30 and, consequently, may be removed as a unit, togetherwith the belt 22, for cleaning and refilling. Furthermore, since thesubframe carrying the belt 22 and the ink receptacle 28 forms a readilyreplaceable unit, it is apparent that color changes may rapidly be madewith little eiort r by replacing one unit for another whenever it isdesirable to change from one color to another. The ink receptacle 20 isfastened between the sides of the subframe and between the runs of thebelt 22 with its mouth adjacent to the upper run of the belt (Fig. Theink-carrying member I8 is an ink-carrying roll consisting of a resilientcore 36, preferably of rubber, and an absolute surface 38 of felt orsome other similar bibulous material in the form of a sleeve disposedaround the core. The resilient core permits the surface 38 to flattenout when pressure is applied, thereby providing a broad area of contactbetween the belt 22 and the surface 38. The ink-carryingroll isjournaled in the walls of the receptacle with its lower side dipping inthe ink and its upper side in engagement with the portion Ill of theupper run of the belt 22. If the contact between the portions I0 and I2,thework, andthe inkcarrying roll is confined to a line contact, theveffectiveness of the apparatus would be largely lost because there wouldbe a tendency for the ink forced upwardly into the passage P at thepoint where the pressure is applied to leak from the passage P betweenthe surfaces of the work, and the belts at each side of the point ofapplied pressure where the pressure falls olf. For that rea'- son, it isdesirable to have the contact between the portions I8 and I2, the work,and the inl;- carrying roll extend over a substantial area of thesurface of the ink-carrying roll so that when the belts are pressedagainst the ink-carrying roll, the surfaces I4 and I6 will besealeduniformlyV over an area of substantial extent.l To this end, theink-carrying roll is arranged with its top above the normal plane of theupper run of the belt 22, that is, so that the top of the ink rolldeiiects the upper run of the belt 22, causing it to pass over anarcuate section of its surface.

A doctor roll `40 is mounted adjacent to the ink-carrying roll at theupgoing side thereof to squeeze the excess ink thereform. The doctorroll 4U is journaled at its ends in bearings 42 slidably mounted inslots 44 formed in the walls of the receptacle 28, and screws 4B areprovided for adjusting the position of the bearings 42 to vary thedegree of the wringing action between the ink-carrying roll and thedoctor roll.

Tables 48 and 50 are mounted at opposite ends of the subframe adjacentto the incoming and outgoing sides of the belts. The table 48 is xedtothe walls 28 and serves as a support for a pile of work and as a guidefor sliding the pieces of work to the bite of the belts. The table 50 isfixed to the subframe and slopes downwardly from the exit side of thebelts, by which the nished work is conducted to a bench or table at theback of the machine. The backing belt. 24 is mounted between the walls28 upon guide rolls 52, 53, '54, 55 and IIB and under a roll 'Ill withthe portion I2 in engagement with the portion I0 of the belt 22. Therolls 5.4 and provide means for driving the belt in the direction of thearrows (Fig. 5) and, to this end, are mounted on shafts 58 journaled inthe walls 28. Gears 56 (Figs. 1` and 2) are lfastened to the ends of theshafts 58 and are driven by means of a gear 60 with which they mesh andwhich, in turn, is driven by a gear 62 attached to the shaft of a pulleyBI connected to an outside vsource of power by a belt 68. The rolls 53and 1I) hold that section of the belt 24 at the right side of the top ofthe ink-carrying rol] I8 (Fig. 5) in contact with the adjacent portionof the belt 22 and substantially in a horizontal plane, therebyproviding means for feeding the work to vthe ink-carrying roll andsealing the work between the surfaces I4 and I5. As illustrated, theroll'IIl is mounted for rotation on a shaft 'I2 which is journaled atits ends in the walls 28, one end of the shaft 'I2 having a gear B3fixed thereto which meshes with the gear 60. The guide roll52 is mountedat the left side of the top of the ink-carrying roll with its bottomside below the bottom sides of the guide rolls '53 and 10, thereby towrap the sections of the belts 22 and 24 at the left of the guide roll10 downwardly about the surface of the ink-carrying roll. Theamount ofwrapping and pressure between the belts over the area of Contact withthe ink-carrying roll may be varied by moving the guide roll 52 which,for this purpose, is mounted on a shaft 52' journaled between the 'endsof a pair of arms 14, the latter being turn'- ably mounted on the endsof the shaft 12. `The arms 14. in turn, are journaled in the walls 28,as illustrated. By tilting the arms 'I4 in their journals, the guideroll 52 may be moved about the shaft 12 as a center,v and this isaccomplished by fastening lthe opposite ends of the arms to bellcranknfleversfl. The-bellrcrank levers are piv otally'rfastened at- 18tozlinks 80 (Fig.l 3f); which, ini turn, are pivotally attached to theside walls 28 at 82. Pawls- 84 are provided for locking the bell-cranklevers in the-desired position. The pawls; are pivotally mounted at oneend. on. a spindlev lrjournaled at its ends between the bellcrank levers16. The other ends of the pawls engage onefof a number of serrations 88formed on the edges of the walls 28. In order to hold the pawls outvofengagement with the serrations duringvmovement of the bell-crank leversl16 to increase or decrease the pressure, the pawls are joined by links90 to rods 92 which extend upwardly along the inside of the bell-cranklevers 16 and are joined at their upper ends by a hand grip 94. byywhichthe pawls may be lifted and held while the adjustment. is beingmade.- Springs 96 are placed about the rods 92 and serve normally tourge the pawls 84 in a counterclockwise direction, as seen in Fig; 3, toreturn the pawls to locking position when the hand grip 94 is released.

` While the belt 24 is driven by means of the guide rolls 54 and 55 inthe directions of the arrows, the belt 22 is only driven by contact withthe belt 24. This arrangement eliminates anycomplicated'drivingconnections which would be necessary to drive the rolls 32 and at thesame time permits ready removal of the subframe and replacement thereof;As constructed, the subframeA is heldin place only bythe guide roll 52and that portion of the belt passing around it which-.lies against theuppersurface of the'inkcarrying roll s that the'top-of the ink-carryingroll is pocketed behind the guide roll 52 and cannotv be moved outwardlywithout first raising the latter. To prevent the inward pressure of theguide-roll 52 from pushing the subframe too far beneath the belt 24, apair of stop screws-98 (Fig. 3) are threaded through bosses |00 fixed tothe walls of the subframe 30 with their ends abutting the edges of thewalls 28.

In order to keep the backing belt 24 taut at all Ytimes irrespective oftheposition of the guide roll 52., a tension roll |02 is provided. Thisroll bearsagainst the backing belt 24 and is provided with agroovedsurface (Fig. 6). to permit any ink on the surface of the belt to passbeneath it, sncefit is not desirable to have the ink squeezed off theYbelt at thispoint and thereby caused to dripvdown onto-the belt 22. Theroll |02 is journaled in bearings |04 which are slidably mounted inslotsY |05, formed in the walls 28 so that they may be moved to and fromthe belt 24. Screws |08 .are provided for adjusting the position of thebearings |04, and consequently the roll |02, in ordertov procure theproper tension in the belt 24. Itis evident that an increase in thetension of the belt 24 also uniformly increases the pressure between thebelts along that portion thereof between thetguide rolls 52r andi'lil.

Ordinarily, the ink" comes in contact with the surface of the belt 24-only where the passage P is formed about the work and through thecutouts in the work. Some additional ink may, however, be present due tothe fact that the contact between the surfaces of the belts may not beabsolutely perfect and the pores themselves may not be wholly closed bythe pressure. When, for* example, particles of dirt or fragments ofleather are carried between the surfaces of the belts, the surfaces maybe held apart suiiciently to permit a small amount of ink to leakthrough the perforations p toA and between the surfaces of thebelts.Conscquently,this surface I6 must constantly be cleaned to remove-anyink that might otherwise find its way to the display or grainl surfaceof the work. This is accomplished by looping the belt 24 through a watercontainer ||0 supported by a. pair of straps ||2 which are fastenedtothe walls of the container I0 by means of screws |4 and to the walls28 by screws ||6. The belt 24 passes about a roll ||8 submerged in thecontainer l0, the roll ||3 being journaled in the lower ends of thestraps ||2. The water serves to wash the ink from the belt 24 and, whenthe water becomes too dirty, the container may be emptied throughone ofa pair of cocks (Fig. 3) and relled with clean water through the other.After the washing, the belt must be dried, and for this purpose a wrngerroll |22 is provided for` squeezing the water from the surface of thebelt back into the container ||0. The wringer roll |22 ismountedadjacent to the guide roll 5'5 and contacts the belt where it passesover the guide roll. The wringer roll is journaled between a pair ofangular members |24 which are pivotally mounted at one end tothe upperends of the straps ||2 on studs ||3. Screws |26 are passed through theopposite ends of the members |24, the lower ends of the screws restingupon the top edges of the walls 28 and thereby providing means forincreasing or decreasing. the pressure between the rolls |22 and 55 and,consequently, the wringer action between the wringer roll |22 and thebelt 24. While the wringer roll |22 squeezes most of the water from thesurface of the belt 24, asmall amount of moisture remains and tends tocause` the ink to spread. It is necessary, therefore',4 completely toremove this moisture, and this is accomplished by means ofv a rapidlyrotating brush |28 which is mounted on a shaft 3|] adjacent to thewringer rollv |22 at the right-hand side of the machine, as seen in Fig.5, with the tips of its bristles barely touching the surface of thebelt. The shaft |30 is journaled in arms |312 (Fig. 3) which are mountedon the ends of the studs I3. In order to increase or decrease the wipingactionv of the brush |28, adjusting screws |34 are provided for changingthe position of the brush with respect to the surface of the belt. Thescrews |34are threaded through bosses |35 xedvto the walls 2.8 withtheir ends abutting the arms |32. A pulley |58 (Fig. 2) is fastened tothe shaft |30, the latter being rotated by a belt which is connected toan outside, source of power. The rotation of the brush not only wipesthe belt but sets up currents of air which tend to evaporate themoisture on the belt. A guard |42 is placed about the brush |28, theguard being fastened to the members |24. y

` When the machine is in operation, the work is pushed along the table48 until its leading end is gripped by the bite of the belts andI drawninwardly between them. At this time, before the work reaches theink-carrying roll, the belts, which are under considerable tension,enclose the work, as shown in Fig. 9, the surfaces |4 and ||5 of thebelts meeting all around the work and forming a passageA P completelysurrounding the work, While the pressure between the belts is not Avery*great at thispoint, it is sufficient to cause the work to seal the upperends of the perforationsp beneath it and to form a seal b`etween thebelts. As the work enclosed by the belts moves on to and between theink-carrying vroll |8 and the rolls 'I0 and 52,v the belts are uniformlysqueezed against the. ink-carrying roll, thereby depressing the surface38k of the ink-carrying roll (Fig. 10) and expressing the ink therefrom.As the leading en'd of the work enters the bite between the ink-carryingroll and the roll 1B, the ink rises through the'perforations p (Figs. land 12,), as indicated bythe arrows, and passes through the upper endsof the perforations which terminatey in the passage P and into contactwith the edges of the Work. The air in the other perforations, the upperends of which are closed by the work and the surface I6 of the belt 24,is trapped therein and prevents the ink from rising to the tops of theseperforations. As the work is passed beyond the ink-carrying roll and theroll 52, the pressure is relieved and the felt on the ink-carrying rollis allowed to expand; whereupon a suction is set up which withdraws theink from the passage P and the perforations d (Fig. 13). The work isfinally carried out by the belt 22 to the delivery table 50. Thepressure and the amount of ink are variable factors and must be adjustedby experiment for the particular kind of leather being finished, sincethey vary with the density andthe thickness of the leather and sometimes-with the finish.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is;

1. In a machine for coating the surfaces of the edges of a piece ofwork, separate means for engaging the opposite surfaces of the work, oneof said means having a plurality of discrete capillary pores therein,said separatemeans being movable into intimate contact with each otherand with the Work, thereby to cause those pores in one of said meanswhich terminate op, posite the other one of said means and animperforate portion of the work to become sealed while the remainingpores adjacent to the edge surfaces of the work are unobstructed, abibulous member supplied with ink adjacent to l said means, and meansfor relatively moving said separate means and the bibulous member` tobring the means having discrete capillarypores therein firmly againstthe bibulous member to cause ink to iiow through said unobstructed.discrete capillary pores onto the edge 'surfacesof the work.

2. In a machine for coating the `surfaces. -Aof the edges of a piece ofwork, separate means for, engaging the opposite surfacesof the work, oneof said means having a plurality of unconnected pores therein, saidseparate means being movable -into intimate engagement with each otherand with the work, thereby to cause those pores in one of said meanswhich terminate opposite the other one of said means and the imperforateportion of the work to become sealed while :the remaining pores.adjacent to the edge surfaces of the work are unobstructed, a bibulousmember containing ink, and means for relatively moving said separatemeans and thebibulous member to press said means having pores thereinagainst thel bibulous member to cause ink to4 flow through the saidunobstructed pores onto the edge surfaces of the work. l

3 In a machine for coating the edge-'surfaces of a piece of work,separate means for engaging the opposite surfaces of the workfone lofsaid means being composed of Yrubber and' having 'a' plurality .of porestherein isolatedq-vfromt'each: other by impervious portions, :saidseparatemeans being movable into intimate engagement with each other andwith the work, thereby to close the pores in one of said means whichterminate opposite the other'one of said means and an imperforateportion ofthe work while the pores opposite to an edge or a perforationin the work are open, a bibulous member containing ink, and means forrelatively moving said separate means and the bibulous member to pressthe rubber one of said means against the bibulous member to cause ink toflow through the open pores onto the edge surfaces of the Work piece. l

4. In a machine for coating the edge surfaces of a piece of work,separate means for engaging the opposite surfaces of the work, one ofsaid means being composed of rubber and. having a plurality of porestherein isolated from each other. by impervious portions, saidimpervious portions being more than r15% ofthe total area of any unit ofarea, said separate means being movable into intimate engagement witheach other and with the Work, thereby to close the pores in onev of saidmeans which terminate'opposite the other one of said means ortheimperforate portion'of the work while the pores opposite to an edge or aperforation in the work are open, a bibulous member containing ink, andmeans for applying pressure to said separate means while in intimatecontact in a direction to press the rubber one of said means against thebibulous member tocause ink toV now through the open pores onto the edgesurfaces fof the Work.

5. In a machine for coating the edge surfaces of a. piece of work havingperforations therein, separate means for engaging the opposite surfacesof the work, one of said means having a plurality of pores thereinseparated from one another by nonpermeable portions, saidV separatemeans being movable into intimate engageu ment with each other and withthe Work, there by to seal the pores in said one of said means whichengage an imperforate portion of the workand the other one of saidmeans, while the pores opposite to an edge or a perforation inthe workare open, a bibulous member containing ink, and means for applyingpressure to said separate means while in intimate contact in a directionto press said porous one of said means against the bibulous member tocause ink to flow through said open pores onto the edge surfaces of thework, the ink in said closed pores being prevented from rising thereinby air trapped in their upper ends.

Y 6. In a machine for coating the edge surfaces of a piece of workhaving perforations therein, separate means for engaging theopposite surfaces of the work, said separate means' being movvable into intimateengagement with each other to cause ink to flow 'through saidunobstructed pores onto the edge surfaces of the work and toV trap rairin .said closed pores thereby preventing the now 'fe'f filnk onto theimperforate portion `lof the Work-or lsaidoth'er one of Y'said means.

'7. In 'a machine for coating the-edge surfaces of a piece of. Work, y.ashielding member engaging the display surface of the-work, a.perforatecontrol member engaging the opposite .face ,of the work, saidcontrol member being made of avyielding, rubber-likematerial with-asmooth Asurface adapted to be broughtintofirm Contact with one face ofthe work, said control member having a plurality of spaced, pore-likeperforations emerging through said. smooth surface and noncommunicating`adjacent to said surface, whereby they are sealedxby the A.piece ofWork, an ink carrier for supplying. ink to the other surfaceof saidperforate member, and means'- for squeezing together said members, apiece of Work interposed between themand said ink carrier, thereby tocause ink tooW throughthe unsealedgper-l forations onto the edgesurfaces of the Work.

8. A machine for coating fthe edges of 4a shoe part comprising anendless backing belt -or protecting the display side of the Work, meansfor holding the shoe part against -said backing belt, means vforsupplying `ink to the edges of said shoe part While held in engagementWith the backing belt, and means to wash the backing belt While out ofcontact witnthe first-namedmeans.

9. A machine -for coatingA the edges of a-shoe part comprisingmeanshaving a surface for supporting the Work, an endless belt a portion ofwhich is parallel to the surface of the supporting means for engagingthe opposite side ofthe work, said supporting means being a-perforatenonabsorbent member, means for moving said surfaces into and out ofengagement to closesuccessive pieces 'of work, an 'ink-applying memberadjacent to the 'first-'named means, means for supplying ink to said'ink-'applying member, means for pressing said first-named means 'andsaid endless lbelt against said 'ink-'applying member while inengagement, 'and means for `Washing said endless lbelt while out ofTengagement with 'the rst-named lmeans to insure a Vclean portion foreach pieceo'f Work.

10. A machine -for coating `the edges of "a shoe part comprisingmeans-having a surface -for supporting one sideof 'the work, an endlessbelt `a portion of which -is parallel to the 'surface of the supportingmeans for engaging-the lloppositelside of the Work, said supportingmeans being-a nonabsorbent multipore mem-ber, -means Lfor .movin'g saidsurfaces-into andvout of engagement toenclose the Work, an ink-applyingmember adjacent to the rst-named means, means for 'supplying ink to saidink-applying member, means for pressing said endless belt and saidfirst-named means against said ink-applying member While in engagement,and a bath through which the endless belt passes yto wash the inktherefrom.

11. A machine for coating the edges vof a shoe part comprising meanshaving a surface for supporting one side of the work, an endless belt faportion of which is parallel tothe surface of the supporting means forengaging fthe opposite 'side of the work, said supporting means lbeinganonabsorbent multipore member, means for moving said surfaces into andout of engagement to enclose successive pieces of work, a resilientinkapplying member adjacent to the rst-named means, means for supplyingink to said ink-'applying member, means for "pressing said `firstnamedmeans against` the ink-applying member While in vengagement withtheendlessfbelt, zand;

means for washingand :drying lheyendles's belt While fout-"of Contactwith said nrstnamed-imeans.

12. -A machine for coating the edgesfoffa shoe part. comprising :anfend-less. backingl :beItiorY-protecting the vdisplay Aside fof: thework, means for holding ith'essh'oe part against said Lbackingb'elt,means forvsupplying ink tof-the-'edges ofstheisho'e part While held in'engagement' with :the .backing belt, and :means Vfor .washing anddrying ltheendless `belt while Vout .of contact vwith sai'dirs'tnamedmeans.

13. A machinerfor .coating the edgessofl aishoe part comprising'meansvhaving fa. surface fortsupporting 4one side Aof A-thework, an endless:belta portion of which isgparallel to the fsurface fof-ithe supporting4means rfor eng-aging the oppositesides of the work, -saidsupportingmeans being :fa vnonabsorbent multipore member, means for moving saidsurfaces into tand out of `engagement Ito enclose successive vpieces "ofWork,.a.r'esi1ient'ink applying member yadjacent :to the Vinst-:namedmeans, means for supplying Iink t'o sai'd ink-apa plyin-g member, means.for pressing s saidrst.- named, means against saidv ink-applying.member While in engagementwith Vthe endlessfbelt, ymeans for washingthe endless belt while. not'in contact with the rst-named means, and :abrush for drying the belt.

14. A machine for coatingftheledges '.offaishoe part comprising ymeanslhaving asurface--for supporting onesi-de of theLwork, anvendless belt aportion of which is .parallelifto thesur-tace of-the supporting meansfor engaging z'theopposite side of the Work, saidsupporting meansibeing.aznonabsorbent multipore member, meansfor mov-ing said surfacesinto andout .of engagementtoenclose successive "pieces of Work, .an ink-applyingmember adjacent "to lthe first-named means, means for 'supplying ink-.tosa'dink-applying member,"means for 'pressing -said rst-named meansa'gainst /saidnk-"applying member While in engagement "with "the endlessbelt, .a r'bath through which 'the "endless beltl'passes to washinkfthere'f'rom whil'eit isfout of -contact with the rst=na`rned means,and "a .cylindrical "brusli xotatable -in contact Withthe v'belt toV drythe same.

15. Amachineffor coatingth'e 'edges' 'of "a 'shoeA part comprising V'asupport `frortne `vvo'rk '"c'onsi's't ing 'of ya 1non'absorbent'multipore endles'sfbel'tg means having a surface parallel t0 a prtioncfthe endless -b`elt for-engaging thebpposi'te side of the ywork, meansfor bringing the-parallelsurfaces of `said endless `belt 'andsaidf'rstenamed means together to enclose the-'Work, an ink-ape ply-ingmember adjacent to the endlessBreit,v

part comprising va support c"for sthe fwork Aconsist-- ing fof.anle'ndless multipor'e lb'el't adapted "to en! gage #one .surface ofithe. f-wcrk, meanshaving' `a surface parallel lto a portion df-theendless `belt for engaging 'the opposite fsurface of Athe fwornf meansforlbiinging Lthe fparlallel l"surfaces -fof sld endless `belt1and saidllrsty-named :means togetlier' to enclose the Work thereby v"to-'formalclosedpase" sage entirely -Jsurrounding the `worniorie wall ofwhichlis the fedgeiof thework,-.an I:ink absorbent member adj acentV ttothat? pbrtion 'ofth'e endless multipore beltzpara'llel totneirst-'named'meanaan fink receptacleforfsupplying-ink to said alb--Asorbent' member, zand. rmeansfrfpressing fs'aid in engagement toWard theabsorbent member to bring the belt into engagement with it.

17. A machine for coating the edges of a shoe part comprising a supportfor the work consisting of an endless multiporebelt adapted to engageone surface of the Work, an imperforatebelt having a surface parallel toa portion of the multipore belt for engaging the opposite surface of theWork, guide rolls, one' of whichis driven, lfor bringing the parallelsurfaces. of said multipore belt and said imperforate belt together toenclose the Work, an inl; receptacle,l a felt rollg adjacent to theendless multipore belt and having a lower portion which dips in said inkreceptacle, and a roll in engagement vwith, the imperforate beltoperable to press saidmultipore belt While in contact with theimperforate belt and a shoe part against the felt roll.

18. A machine for coating the edges of a shoe part comprising avsnpportfor the work `consisting of anendle'ss multipore belt adapted to enngage one surface of the Work, means having a surface parallel to aportion of the'endless belt for engaging the opposite surface of theWork, means for bringing the parallel surfaces of said endless belt andsaid nrst-named means together to enclose the Work, an ink absorbentmember adjacent to that portion of the endless multipore belt which isparallel to the first-named means, an ink receptacle for supplying ink tsaid absorbent member, means for pressing said endless belt and saidfirst-named means while in Contact against said ink absorbent member,and means for removing the excess ink from said absorbent member beforesaid endless belt is pressed into engagement therewith.

19. A machine for coating the edges of a shoe part comprising a supportfor said Work consisting of an endless multipore belt engaging onesurface of the Work, an absorbent member adjacent to said multiporebelt, means for supplying ink to said absorbent member, a second endlessbelt having a portion thereof parallel to the endless multipore belt,means for bringing said parallel portions of said belts together toenclose the Work, and means uniformly to press together a section of theparallel portions of said belts and said absorbent body.

20. A machine for coating the edges of a shoe part comprising an endlessmultipore belt engaging one surface of the Work, a felt ink roll over aportion of Which passes the multipore belt, a second endless belt havinga portion parallel to a portion of the multipore belt engaging theopposite side of the Work, and means for pressing together a section ofthe parallel portions of the `belts against the peripheral surface ofthe felt ink roll thereby to force the inl: through the perforations ofthe multipore belt.

21. A machine for coating the edges of a shoe part comprising an endlessmultipore belt engaging one surface of the work, a felt ink roll over aportion of which passes the multipore belt, a second endless belt havinga portion parallel to a portion of the multipore belt engaging theopposite side of the work, means for holding the parallel portions ofsaid belts in engagement, and means for pressing a section of saidparallel portions into engagement With the surface of the felt ink roll.

22. A machine for coating the edges of a shoe part comprising an endlessmultipore belt engaging one surface of the work, a felt ink roll over aportion of which passes the multipore belt, a

second endless belt having a portion parallel to the multipore beltengaging the oppositeside of the Work, guiderolls arranged to hold theparallel portions of said belts in engagement and to move them to feedthe Work, and another roll, between the guide rolls which support thesecT ond endless belt, operable to press a section of said parallelportions into `engagement with` the surface of the felt roll. l

23..A machine for coating the edges of a shoe part comprising an endlessmultipore belt adapted to engage one surface of the Work,.a felt inkroll over a portion of which passes the multipore belt, an `endlessbacking belt having a portion parallel to a portion of the multiporebeltand engaging the opposite side of the Work, spaced rolls, atleasttwo of which are Within the endless backing belt, for supportingthe parallel portions of the belts in engagement with each other, one ofsaid inside supporting rolls engaging the backing belt at one side ofthe ink roll and another engaging said backing belt at the other side'-of the ink roll, and means for moving one of said supporting rollsrelative to the ink roll to Wrap the belts around the surface of the inkroll.

24. A machine for coating the edges of a shoe part comprising an endlessbelt arranged to engage one surface of the Work, an endless multiporebelt arranged to engage the opposite surface of the Work, means forsupporting said multipore belt as a unit including means for applyingink to a portion thereof, said means being removable to disengage saidbelts, and means to hold said supporting means in operative position.

25. A machine for coating the edges of a shoe part comprising an endlessbacking belt arranged to engage one surface of the Work, an endlessmultipore belt arranged to engage the opposite surface of the Work,means for supporting said multipore belt and applying ink to a portionthereof, means for supporting and driving the backing belt, and agrooved idle roll movable against the backing belt to take up the slacktherein.

26. A machine for coating the edges of a shoe part comprising an endlessmultipore belt engag ing one surface of the work, a felt ink roll over aportion of which passes the multipore belt, a second endless belt havinga portion parallel to a portion of the multipore belt engaging theopposite side of the Work, means for holding the parallel portions ofsaid belts in engagement, a roll arranged to engage the parallelportions of the belts between the means for holding said parallelportions in engagement, said roll being adapted to press a section ofsaid parallel portion into engagement with the surface of the felt inkroll, and means adapted to move said roll to vary the pressure.

27. A machine for coating the edges of a shoe part comprising an endlessmultipore belt engaging one surface of the work, a felt ink roll over aportion of which passes the multipore belt, a second endless belt havinga portion parallel to a portion of the multipore belt engaging theopposite side of the Work, means for holding the parallel portions ofsaid belts in engagement, one of said last-named means comprising a rollarranged to engage a section of said parallel portions and to press itinto engagement with the surface of the felt ink roll, and means to movesaid roll to vary the pressure.

28. A machine for coating the edges of a shoe part comprising an endlessmultipore belt engaging one surface of the Work, a felt ink roll overaportion of which passes the multiporelbelt, asecond endless belt'havingarportion parallelzto a .portion of the multipore lbelt engaging:the 0pposite :side of "the work, .means for 'holding the parallelportions of'said belts in engagement,.one of said last-namedmeanscomprising a..roll,.le versfor supporting said rollinengagement with asection of said parallel iportions, said levers being movable to causesaid .rolltoipress-said sectionagainst'the.inkcarryinglroll .29...1Amachine Fior -coating rtheyedges :of .a .shoe part comprising 1anendless 'fmultip'ore `belt engaging one .surface .of the lWork, 1a.*felt.inknoll over a portion of which passes Athe .'multi'pore belt, a secondendless belt having. a portion-parallel to a portion of.thefmultiporebelt.engaging the Iopposite side fof the workmeans Iforholding the parallelportions ofisaidibe'lts inengagement, one :vof said..last-named: means Scomprising) a .rro'll,

means for fsupporting..said roll in .enga-'gement with :a: sectionfof..said fportionsfisaid :meansbeing movable to icause .said roll :to .press:said rsecton against the ink-"carrying froll, fand .meansltoflock saidlast-named meansin 'a predetermined position.

30. :A kmachine for coatingtheiedges .of ashoe part .comprising anendless mltipore :belt'engagingone 'surface vof ,the work, a, feltinkfroll .overfa portion of which passes the multipore belt, a secondendless belt having a portion parallel to a portion of the multiporebelt engaging-theeopposite sidefof the work, means for holding-theparallel portions of said belt in engagement, one vof said last-namedmeans comprising 'a roll, meansi for supporting said rollin engagement-with-a sec\ tion of said 'parallel portions, -saidfmeans ybeing movableto causel said roll to press Asaid'section against the ink-carryingro11,'1oeking means to lock said last-named means in a predeterminedposition, and means for holding the locking means inoperative duringthe'positioning lofsaid roll.

ROUEL R. CAMPBEBL.'

l PatentV No. 2,5lp9,2}45.

CERTIFICATE OF CORRECTION.

May 25, 19ML. ROUEL R. CAMPBELL.

-It is herebr certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: Page l,second column, line 55, for "as it" read --is to; page 5, first column,line 57, for "absolute" read -absorbent-; page 6, first column, line 57,claim .and that the said Letters Patent should be read with thiscorrection therein that the same may conform to the record of the casein the Patent Office.

signed and .sealed this 8th day @f August, A. D. 19th.

Leslie Frazer (Sea-l) Acting; Commissione;` of Patents.

